ByteScout PDF Suite – C# – Change PDF Selection Options and use CustomPaint with PDF Viewer SDK

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ByteScout PDF Suite – C# – Change PDF Selection Options and use CustomPaint with PDF Viewer SDK

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ByteScout-PDF-Suite-C-sharp-Change-PDF-Selection-Options-and-use-CustomPaint-with-PDF-Viewer-SDK.pdf

How to change PDF selection options and use custompaint with PDF viewer SDK in C# with ByteScout PDF Suite

Step-by-step tutorial on how to change PDF selection options and use custompaint with PDF viewer SDK in C#

These source code samples are assembled by their programming language and functions they apply. ByteScout PDF Suite: the bundle that provides six different SDK libraries to work with PDF from generating rich PDF reports to extracting data from PDF documents and converting them to HTML. This bundle includes PDF (Generator) SDK, PDF Renderer SDK, PDF Extractor SDK, PDF to HTML SDK, PDF Viewer SDK and PDF Generator SDK for Javascript. It can change PDF selection options and use custompaint with PDF viewer SDK in C#.

Want to save time? You will save a lot of time on writing and testing code as you may just take the C# code from ByteScout PDF Suite for change PDF selection options and use custompaint with PDF viewer SDK below and use it in your application. IF you want to implement the functionality, just copy and paste this code for C# below into your code editor with your app, compile and run your application. Enjoy writing a code with ready-to-use sample codes in C#.

ByteScout provides the free trial version of ByteScout PDF Suite along with the documentation and source code samples.

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Form1.Designer.cs

      using Bytescout.PDFViewer;

namespace Example
{
	partial class Form1
	{
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.IContainer components = null;

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
		protected override void Dispose(bool disposing)
		{
			if (disposing && (components != null))
			{
				components.Dispose();
			}
			base.Dispose(disposing);
		}

		#region Windows Form Designer generated code

		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.pdfViewerControl1 = new Bytescout.PDFViewer.PDFViewerControl();
			this.toolStrip1 = new System.Windows.Forms.ToolStrip();
			this.tsbOpen = new System.Windows.Forms.ToolStripButton();
			this.cbLockSelection = new System.Windows.Forms.CheckBox();
			this.cbAllowResizeSelection = new System.Windows.Forms.CheckBox();
			this.cbMultiSelectMode = new System.Windows.Forms.CheckBox();
			this.toolStrip1.SuspendLayout();
			this.SuspendLayout();
			// 
			// pdfViewerControl1
			// 
			this.pdfViewerControl1.AllowResizeSelectionRectangles = true;
			this.pdfViewerControl1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
            | System.Windows.Forms.AnchorStyles.Left) 
            | System.Windows.Forms.AnchorStyles.Right)));
			this.pdfViewerControl1.BackColor = System.Drawing.SystemColors.ButtonShadow;
			this.pdfViewerControl1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.pdfViewerControl1.Location = new System.Drawing.Point(12, 97);
			this.pdfViewerControl1.MouseMode = Bytescout.PDFViewer.MouseMode.Selection;
			this.pdfViewerControl1.MultiSelectMode = true;
			this.pdfViewerControl1.Name = "pdfViewerControl1";
			this.pdfViewerControl1.RegistrationKey = null;
			this.pdfViewerControl1.RegistrationName = null;
			this.pdfViewerControl1.Size = new System.Drawing.Size(1153, 568);
			this.pdfViewerControl1.TabIndex = 0;
			this.pdfViewerControl1.SelectionChanged += new SelectionChangedEventHandler(this.pdfViewerControl1_SelectionChanged);
			this.pdfViewerControl1.CustomPaint += new System.Windows.Forms.PaintEventHandler(this.pdfViewerControl1_CustomPaint);
			// 
			// toolStrip1
			// 
			this.toolStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.tsbOpen});
			this.toolStrip1.Location = new System.Drawing.Point(0, 0);
			this.toolStrip1.Name = "toolStrip1";
			this.toolStrip1.Size = new System.Drawing.Size(1177, 25);
			this.toolStrip1.TabIndex = 1;
			this.toolStrip1.Text = "toolStrip1";
			// 
			// tsbOpen
			// 
			this.tsbOpen.Image = global::Example.Properties.Resources.folder_page;
			this.tsbOpen.ImageTransparentColor = System.Drawing.Color.Magenta;
			this.tsbOpen.Name = "tsbOpen";
			this.tsbOpen.Size = new System.Drawing.Size(80, 22);
			this.tsbOpen.Text = "&Open PDF";
			this.tsbOpen.Click += new System.EventHandler(this.tsbOpen_Click);
			// 
			// cbLockSelection
			// 
			this.cbLockSelection.AutoSize = true;
			this.cbLockSelection.Location = new System.Drawing.Point(12, 74);
			this.cbLockSelection.Name = "cbLockSelection";
			this.cbLockSelection.Size = new System.Drawing.Size(95, 17);
			this.cbLockSelection.TabIndex = 2;
			this.cbLockSelection.Text = "Lock selection";
			this.cbLockSelection.UseVisualStyleBackColor = true;
			this.cbLockSelection.CheckedChanged += new System.EventHandler(this.cbLockSelection_CheckedChanged);
			// 
			// cbAllowResizeSelection
			// 
			this.cbAllowResizeSelection.AutoSize = true;
			this.cbAllowResizeSelection.Checked = true;
			this.cbAllowResizeSelection.CheckState = System.Windows.Forms.CheckState.Checked;
			this.cbAllowResizeSelection.Location = new System.Drawing.Point(12, 51);
			this.cbAllowResizeSelection.Name = "cbAllowResizeSelection";
			this.cbAllowResizeSelection.Size = new System.Drawing.Size(178, 17);
			this.cbAllowResizeSelection.TabIndex = 3;
			this.cbAllowResizeSelection.Text = "Allow resize selection rectangles";
			this.cbAllowResizeSelection.UseVisualStyleBackColor = true;
			this.cbAllowResizeSelection.CheckedChanged += new System.EventHandler(this.cbAllowResizeSelection_CheckedChanged);
			// 
			// cbMultiSelectMode
			// 
			this.cbMultiSelectMode.AutoSize = true;
			this.cbMultiSelectMode.Checked = true;
			this.cbMultiSelectMode.CheckState = System.Windows.Forms.CheckState.Checked;
			this.cbMultiSelectMode.Location = new System.Drawing.Point(12, 28);
			this.cbMultiSelectMode.Name = "cbMultiSelectMode";
			this.cbMultiSelectMode.Size = new System.Drawing.Size(108, 17);
			this.cbMultiSelectMode.TabIndex = 4;
			this.cbMultiSelectMode.Text = "Multi-select mode";
			this.cbMultiSelectMode.UseVisualStyleBackColor = true;
			this.cbMultiSelectMode.CheckedChanged += new System.EventHandler(this.cbMultiSelectMode_CheckedChanged);
			// 
			// Form1
			// 
			this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
			this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
			this.ClientSize = new System.Drawing.Size(1177, 677);
			this.Controls.Add(this.cbMultiSelectMode);
			this.Controls.Add(this.cbAllowResizeSelection);
			this.Controls.Add(this.cbLockSelection);
			this.Controls.Add(this.pdfViewerControl1);
			this.Controls.Add(this.toolStrip1);
			this.Name = "Form1";
			this.Text = "Form1";
			this.toolStrip1.ResumeLayout(false);
			this.toolStrip1.PerformLayout();
			this.ResumeLayout(false);
			this.PerformLayout();

		}

		#endregion

		private Bytescout.PDFViewer.PDFViewerControl pdfViewerControl1;
		private System.Windows.Forms.ToolStrip toolStrip1;
		private System.Windows.Forms.ToolStripButton tsbOpen;
		private System.Windows.Forms.CheckBox cbLockSelection;
		private System.Windows.Forms.CheckBox cbAllowResizeSelection;
		private System.Windows.Forms.CheckBox cbMultiSelectMode;
	}
}

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Form1.cs

      using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using Bytescout.PDFViewer;

namespace Example
{
	public partial class Form1 : Form
	{
		public Form1()
		{
			InitializeComponent();
		}

		protected override void OnLoad(EventArgs e)
		{
			pdfViewerControl1.InputFile = "sample.pdf";

			base.OnLoad(e);
		}

		private void tsbOpen_Click(object sender, EventArgs e)
		{
			using (OpenFileDialog openFileDialog = new OpenFileDialog())
			{
				openFileDialog.Title = @"Open PDF Document";
				openFileDialog.Filter = @"PDF Files (*.pdf)|*.pdf|All Files|*.*";

				if (openFileDialog.ShowDialog() == DialogResult.OK)
				{
					this.Text = openFileDialog.FileName;

					Cursor = Cursors.WaitCursor;

					try
					{
						pdfViewerControl1.InputFile = openFileDialog.FileName;
					}
					catch (Exception exception)
					{
						MessageBox.Show(exception.Message);
					}
					finally
					{
						Cursor = Cursors.Default;
					}
				}
			}
		}

		private void cbMultiSelectMode_CheckedChanged(object sender, EventArgs e)
		{
			pdfViewerControl1.MultiSelectMode = cbMultiSelectMode.Checked;
		}

		private void cbAllowResizeSelection_CheckedChanged(object sender, EventArgs e)
		{
			pdfViewerControl1.AllowResizeSelectionRectangles = cbAllowResizeSelection.Checked;
		}

		private void cbLockSelection_CheckedChanged(object sender, EventArgs e)
		{
			pdfViewerControl1.LockSelection = cbLockSelection.Checked;
		}

		List<String> _labels = new List<string>();

		private void pdfViewerControl1_SelectionChanged(object sender, SelectionChange selectionChange, int selectionIndex)
		{
			if (pdfViewerControl1.Selection.Length > _labels.Count)
			{
				for (int i = _labels.Count; i < pdfViewerControl1.Selection.Length; i++)
				{
					_labels.Add(new Random().Next().ToString());
				}
			}
		}

		private void pdfViewerControl1_CustomPaint(object sender, PaintEventArgs e)
		{
			// Paint labels
			for (int i = 0; i < pdfViewerControl1.Selection.Length; i++)
			{
				Rectangle r = Rectangle.Round(pdfViewerControl1.Selection[i]);
				r = pdfViewerControl1.TranslateRectangleToViewport(r);
				
				Size textSize = TextRenderer.MeasureText(_labels[i], Font);
				Rectangle textRectangle = new Rectangle(r.Left, r.Top - textSize.Height - 6, textSize.Width + 2, textSize.Height + 2);

				e.Graphics.FillRectangle(Brushes.DarkBlue, textRectangle);
				TextRenderer.DrawText(e.Graphics, _labels[i], Font, textRectangle, Color.White, TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter);
			}
		}
	}
}

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60 Day Free Trial or Visit ByteScout PDF Suite Home Page

Explore ByteScout PDF Suite Documentation

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ON-DEMAND REST WEB API

Get Your API Key

Explore Web API Docs

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Program.cs

      using System;
using System.Collections.Generic;
using System.Windows.Forms;

namespace Example
{
	static class Program
	{
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main()
		{
			Application.EnableVisualStyles();
			Application.SetCompatibleTextRenderingDefault(false);
			Application.Run(new Form1());
		}
	}
}